package com.auth.leaves.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.multipart.MultipartResolver;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

/**
 * @Author LEAVES
 * @Date 2020/8/31
 * @Version 1.0
 */

@Configuration
public class UploadConfig extends WebMvcConfigurerAdapter {
    //显示声明CommonsMultipartResolver为mutipartResolver
    @Bean(name = "multipartResolver")
    public MultipartResolver multipartResolver() {
        CommonsMultipartResolver resolver = new CommonsMultipartResolver();
        resolver.setDefaultEncoding("UTF-8");
        //resolveLazily属性启用是为了推迟文件解析，以在在UploadAction中捕获文件大小异常
        resolver.setResolveLazily(true);
        resolver.setMaxInMemorySize(40960);
        //上传文件大小 100M 100*1024*1024
        resolver.setMaxUploadSize(100 * 1024 * 1024);
        return resolver;
    }
}
